Internal combustion motor



July 28, G F. CALLAHAN JR 2,049,248

INTERNAL COMBUSTION MOTOR Filed May 9, 1935 2 Sheets-Sheet l ATTORNEY July 28, 1936. G. F.1cALLAHAN. JR 2,049,248

INTERNAL COMBUSTION MOTOR Filed May 9, 41955 2 Sheets-Sheet 2 ATTORNEY Patented July 28, 1936 D STATES PATENT OFFICE 16 Claims.

The invention pertains to internal combustion motors employed as a propulsion meansfor vehicles with specio reference to the arrest and regulation of the heat, radiated by the exhaust '.manifold, to be consumed by the intake manifold in order to be united with the combustion fuel. f In internal combustion motors employing oil as a combustion fuel it is found that, in sections of the country where the climatic conditions vary at unusual degrees of temperature, the oil employed as the fuel, becomes congealed and will not atomize sufficiently to allow the proper com- Vbustive mixture withinY the combustion chambers. It has also been found during warmer periods,

' in various sections of the country where the terrain is of varying altitudes that while `ascending a relatively steep grade, the temperature of the air beneath the hood of a vehicle, as a result of the heated motor, will attain a somewhat suii- 'cient degree of heat to atomize the fuel oil. Upon descending a similar grade, the temperaturerof the air beneath the hood will diminish to such a degree so as to cause the fuel to congeal thereby detrimentally decreasing the eiliciency of the motor unit.

One of the objects of the present invention is the provision of a suitable mechanism adapted t-o maintain the proper degree of heated air tp be mixed with the fuel oil.

Another object of the invention 1s the provision of a jacket to arrest the heat given olf by the exhaust manifold. Y

Another object of the `invention is the novel construction ofthe jacket so Vas to partially encase the intake manifold and the exhaust manifold.

VA further object of the invention is the provision of means for selectively regulating `the temperature of the air within the jacket.

These and other objects will become apparent to those skilled in the art from the following description together with the accompanyingdrawings which form a part of the present description; in whichl Figure 1 shows a side elevational View of an internal combustion motor, removed from a vehicle, embodying yone form of the present invention.

Figure 2 shows a plan view of the motor unit Vshown by Figure l.

Figure 3 shows an enlarged sectional view taken along the lines 3 3 of Figure 1.

Figure 4 shows a sectional View similar to that shown by Figure 3.

Figure 5 shows a side elevational view of a modification of the invention.

Referring now in detail to the drawings wherein like numerals refer to similar parts, the numeral I generally designates an internal combustion motor. The exhaust manifold 2, secured (Cl. 12S-122) to the motor I adjacent the top portion thereof and extending in a horizontal direction, has a portion vl'leading downwardly to the muliler (not shown) and thence to the atmosphere. The intake manifold 4, having a portion 4a spaced outwardly of the exhaust manifold and extending in a vertical direction through the plane of the exhaust manifold, leads to the carburetor 4b and thus to the combustion chambers. Mounted on the portion 4a. of the intake manifold, in a plane above the exhaust manifold 2, is a suitable a1r cleaner 5. l

The jacket 6 employed to arrest the heat radiating from the exhaust manifold comprises a vertical side wall 'I positioned between the exhaust manifold 2 and the side of the motor unit I and has, adjacent the lower portion thereof, outwardly extending shields 'la adapted to straddle the ports 2a of the exhaust manifold. An angular bracket 8 secured to the side wall 'I has a leg 8a overlying and attached to the motor cover Ia. The side wall 9, positioned outwardly of the intake manifold 4, like the side wall 1, extends in a ,substantially vertical direction from a position adjacent the lower portion of the exhaust manifold 2 to a position above the air cleaner 5. The side walls 'I and 9 are preferably of suicient length, in a horizontal direction, so as to overlie the greater portion of the exhaust manifold vthe purpose of which will become apparentfrom the succeeding description. A machine screw A9a is employed to secure the side wall 9 to the portion 4a of the intake manifold 4.

Connecting the rear portion of the side walls 'I and 9 is a vertically disposed rear wall I0 intersecting the exhaust manifold and closing the rear portion of the jacket 6. The top wall II, connecting the side walls adjacent the top edges thereof and forming a closure for the iop portion of the jacket 6, comprises a substantially horizontal portion I2 spaced from and overlying the air cleaner 5, a downwardly projecting portion I3 extending outwardly from the portion I2 and a portion I4 overlying the exhaust manifold in spaced relation thereto. An opening I3a is provided in the downwardly projecting portion I3 of the top wall Il, the purpose of which will be hereinafter described. The portion I4 of the top wall is inclined at an angle to the exhaust manifold thereby increasing the cross sectional area of the fron-t portion of the jacket to insure the freer passage of heat, radiating from the exhaust manifold, to reach the air' cleaner 5. The inclined portion I4 further functions as a baille plate inY order to direct cool air, driven rearwardly by the fan Ib, toward the opening 13a in the portion I3. The side walls I and 9 and the portion I3 of the top wall II merge, adjacent the front portion of the jacket, to form' a front wall I5 which has, extending therefrom, a flange I6 2 o, y Y

adapted to rest upon the exhaust manifold 2. The band I 6a encircling the exhaust'manifold secures the fiange I6 in position.

` The bottom wall II, extending inwardly of the jacket from the lower edge 'of the side wall 9, follows the contour of the exhaust manifold thereby partially closing the bottom portion of the jacket 6. An aperture I'Ia is provided in the bot-` i tom wall I l for the reception of the vertical portion da of the intake manifold.

It will become apparent to. those skilled inthe Y art that the jacket 6, by partially encasing the exhaust manifold 2 and the intake manifold 4, will retain an appreciable amount of heat radiating from the exhaust manifold thereby increasing the temperature `ofthe air to be consumed by the intake manifold and Vconsequently allowing the propervaporization of the fuel oil within the combustion chambers. `V

During the summer months, the heat thejfuel oil'and, with this in mind,'a shutter arrangement (Figures and 4) has been incorporated -in the jacket so Ythat the temperature of thev air within the jacket may be regulated accordingly. The shutter arrangement is prefer-Y ably mounted on the Ydownwardly projecting por` tion i 3 of the'topwallV II adjacent the edges of 'the'opening I3a and comprises a frame member formed of spaced angular-plates I8 andspaced Z-shapedclosing pieces I9 and 20 respectively extending between the plates I8. Spaced at intervals along the angularY plates I8'l are bars 2| Vpivotally mounted in and extending through the f angular plates I8. Substantially flat platesr22,

extending Ybetween the plates I8 and secured to the bars 2l are, in Ynormal position, arranged 1n overlapped relation to Veach, other and haveY portions underlying the flange 23 of the closing pieceVY pivotally mounted on the Yside' wan 1 of'thejacket.

is agbell crank 28 havingan arm 29 connected to the angularly disposed leg 26aof ,the operating lever 26 by means of Pthe rod 30.^ ',Ihe control rod 3! adapted to move in Va horizontal direction, is pivotally securedV to the arm 32 of the vbell crank 28 and extends to asuitable mechanism (not shown)v 'whereby the shutter arrangement may be operated either manually or thermo- Y In order to inform-the operator of theY motor regarding the degree of heat within the jacket, a temperature indicating bulb 33 is securedto the portion I2'of the top Vwall IIv and extends into the jacket 6 and air cleaner 5.v This bulb is connected to a suitable registering dial (not shown) by the conducting rod 33a. 1

The operation of the shutterv arrangement is as follows; assuming the temperature within theY Y jacket has reached an excessive degree and it is desired to alleviate this condition by openingV the shutter and vthereby allowing the entrance of cool air, being directed rearwardly by the'fan Ib, to, enter therjacket. The control rod 3I"is` radiated Vby the exhaust manifold maybe in excess to the amount required for the VproperV vaporizationof moved in a horizontal directiontoward the rear ofjthe jacket. This movement will impart aV counter clockwise motion tothe bell crank 28:

thereby raising the rod 30 and the operating lever 26. The movement Vof the operating lever 26 in a substantiallyvertical direction will cause the rotation of the links 25, bars 2l and plates 22 in ,a counter clockwise direction thereby position- Y ingrthe plates ure 4. u

, In order to'reduce the temperature of the air 22 horizontally as shown by Fig- "within the jacket more 'rapidly a modification of the invention is disclosed by Figure 5.Y The modied jacket 35 is substantially similar to the jacket Y 6 disclosed by Figures 1 to 4 both inclusive exceptingthat an additional shutter arrangement `36 has been positioned on the rear wall 3l. Whenthe shutter! arrangements 36 and 38 are inopened position, the relatively cool air-'directed rear-- wardly byqthe fan will create a draft Vthrough cleaner 31. Y Y K TheV shutter arrangement 36 -is opened and closed by meansrof a rod 39 connecting the oper-Y ating lever 40 and the bell crank 5I.V The bell crank 4I, which is pivotally mounted on one side of the jacket -35Yis connected to the arm 32a of j the bell crank-28a by means ofthe intermediate rod 42. Theoperating mechanism Yfor the shutter- 2Q the top portion of the jacket encasing'the airY carrying the heated air out of the jacketY arrangement 38 is'the same as heretofore de-Y scribed forthe shutter arrangement shown in' enlargedviews by Figures 3 and Y4 and it will' only be necessary tor describe the operation of theshutter arrangement 36. When the control rod 3 I a is moved in a horizontal direction toward the rear of the jacket35 the bellcrank 23a, will rotate in a counter clockwise direction moving the.`

intermediate rod 112 toward the shutter arrangement 36. This movement will impart a clockwisemotion to the bell crank 4I which in turn will move the rod 39 and operating lever @il in a vertical direction causing the plates '22aV to assume an open or horizontal position.

It will be obvious to those-skilled in the art that Various alterations may be made to the pre's-v Y ent invention as shown in the drawings and described in the present specification as this construction was shown and described merely as a means of exemplification. Y

Having thus described the invention what I claim` as new and desire to'secure by Letters Patent is: v 'Y Y n 1. In an internal combustionmotor, in combination, a horizontally disposed exhaust manifold, a vertically disposed intake Ymanifold spaced outwardly of the exhaust manifold, a jacket par-M tially encasing said manifolds; said jacket having spaced sidewalls, a rear wallfconnecting the side walls, a top Vwall overlying the manifolds in spaced relationthereto and a shutter arrangement on the top wall for selectively controlling the temperature within the jacket.

2. In' an internal combustion motor, in com- Y bination, a horizontally disposed exhaust manifold, a vertically disposed intake manifold spaced v outwardly ofthe exhaust manifold, a jacket partially encasing said manifolds; said jacket having spaced side walls, a rear wall connecting the side walls, a top -wall Vhaving portions in `different planes and overlying said manifolds in spaced relation thereto and means for selectively con-` trolling the'V temperature within the jacket.

3. In an internal combustion motor, in cornbination, ahorizontally disposed exhaust manifold, a vertically disposed intake manifold spaced Y outwardlyV of the exhaust manifold, a jacket partially encasing said manifolds; said jacket having Vspaced side Walls, a rear wall connecting the side walls, a top wall having portions in different planes and overlying said manifolds in spaced Vrelation thereto and a shutter arrangement on planes and overlying said manifolds in spaced Y relation thereto, a shutter arrangement on said top wall and a shutter arrangement on said rear wall for selectively controlling the temperature within the jacket.

5. In an internal combustion motor, in combination, a horizontally disposed exhaust manifold, a vertically disposed intake manifold spaced outwardly of the exhaust manifold, a jacket partially encasing said manifolds; said jacket having spaced side walls, a rear wall connecting the side walls, a top wall overlying said manifolds in spaced relation thereto, a shutter arrangement on said top wall and a bell crank pivotally mounted on one of the side walls and connected to the shutter arrangement.

6. In an internal combustion motor, in cornbination, a horizontally disposed exhaust manifold, a vertically disposed intake manifold spaced outwardly of the exhaust manifold, a jacket partially encasing said manifolds; said jacket having spaced side walls, a rear wall connecting the side walls, a top wall overlying said manifolds in spaced relation thereto, a shutter arrangement secured to the top and rear wall for selectively controlling the temperature within the jacket and a temperature indicator secured to the top wall and extending within the intake manifold for registering the temperature within the jacket.

7. In an internal combustion motor, in combination, an exhaust manifold, an intake manifold,V an air cleaner secured to the intake manifold, a jacket encasing the air cleaner and partially encasing the exhaust and intake manifolds and a mechanism secured to the jacket for selectively regulating the temperature within the jacket.

8. In an internal combustion motor, in combination, a horizontally disposed exhaust manifold, an intake manifold having a portion extending above the plane of the exhaust manifold and a jacket; said jacket having a top wall overlying the intake manifold and projecting downwardly in spaced relation to the exhaust manifold and means secured to the top wall for selectively regulating the temperature Within the jacket.

9. In an internal combustion motor, in combination, an exhaust manifold, an intake manifold and a jacket partially encasing the exhaust and intake manifolds; said jacket having spaced side walls, a top wall overlying said manifolds in spaced relation thereto and connecting the side walls, and a shutter arrangement secured to the top wall adapted to selectively control the temperature within the jacket.

10. In an internal combustion motor, in combination, an exhaust manifold, an intake manifold and a jacket partially encasing the exhaust and intake manifolds; said jacket having spaced side walls, a rear wall connecting the side walls, a top wall overlying the exhaust and intake manifolds and connecting the side Walls, and means secured to the top and rear walls adapted to control the temperature within the jacket.

11. In an internal combustion motor, in combination, an exhaust manifold, an intake manifold and a jacket partially encasing the exhaust and intake manifolds; said jacket having spaced side Walls, a rear wall connecting the side walls, a top Wall overlying the exhaust and intake manifolds, a shutter arrangement secured to the top and rear walls, and bell cranks pivotally secured to one of the side walls and pivotally connected to the shutter arrangements.

12. In an internal combustion motor, in combination, an exhaust manifold, an intake manifold and a jacket partially encasing the exhaust and intake manifolds; said jacket having spaced side Walls, a top Wall overlying the exhaust and intake manifolds, a shutter arrangement secured to the top Wall, a bell crank pivotally secured to one of the side walls and connected to the shutter arrangement, and a rod pivotally secured to the bell crank adapted to control the opening and closing of the shutter arrangement.

13. In an internal combustion motor, in combination, an exhaust manifold, an intake manifold, a jacket partially encasing the exhaust and intake manifolds; said jacket having spaced side walls, a rear wall connecting the side walls, a top wall having portions in spaced vertical planes overlying said manifolds, and means for selectively controlling the temperature within the jacket.

14. In an internal combustion motor, in combination, an exhaust manifold, an intake manifold, a jacket partially encasing the exhaust and intake manifolds; said jacket having spaced side walls, a rear wall connecting the side walls, a bottom wall extending inwardly of the jacket from one of the side Walls, a top wall overlying the manifolds and connecting the side walls, and means secured to said top wall for selectively controlling the temperature within the jacket.

15. In an internal combustion motor, in combination, an exhaust manifold, an intake manifold, an air cleaner secured to the intake manifold, a jacket encasing the air cleaner and partially encasing the exhaust and intake manifolds, and a shutter arrangement secured to the jacket for selectively regulating the temperature within the jacket.

16. In an internal combustion motor, in combination, an exhaust manifold, an intake manifold, a jacket partially encasing the exhaust and intake manifolds; said jacket having spaced side Walls, a rear wall connecting the side walls, a bottom wall extending inwardly of the jacket from one of the side walls, a top wall overlying the manifolds and connecting the side walls, and a shutter arrangement secured to the top and rear walls for selectively regulating the temperature within the jacket.

GEORGE F. CALLAHAN, JR. 

